I later found another good way of finding companies to check to see if they have any open roles: google “competitor to” or “alternative to” and a company name, to find similar companies.
This cannot be understated. Having inside info on a competitor you already worked at is definitely eye catching to a recruiter. It may not get you the job, but will get you noticed, and is definitely an asset your non-tech interviews if you are discreet about how you discuss it.
Unfortunately, as per my experience, this is mostly illegal to do. Every contract I've ever had prohibits me to work for competitors for X amount of years.
This cannot be understated. Having inside info on a competitor you already worked at is definitely eye catching to a recruiter. It may not get you the job, but will get you noticed, and is definitely an asset your non-tech interviews if you are discreet about how you discuss it.